




"""simple docstring"""

def 	UpperCamelCase__  (		lowercase__	:  Tuple ):
		snake_case		:    List[str]             =					len(UpperCamelCase_ )
		snake_case		:    str             =					len(matrix[0] )
		snake_case		:    Union[str, Any]             =					min(UpperCamelCase_							,  UpperCamelCase_ )

		for row in range(UpperCamelCase_ ):
				# Check if diagonal element is not zero
				if matrix[row][row] != 0:
						# Eliminate all the elements below the diagonal
						for col in range(row + 1							,  UpperCamelCase_ ):
								snake_case		:    Tuple             =					matrix[col][row] / matrix[row][row]
								for i in range(UpperCamelCase_							,  UpperCamelCase_ ):
										matrix[col][i] -= multiplier * matrix[row][i]
				else:
						# Find a non-zero diagonal element to swap rows
						snake_case		:    List[str]             =					True
						for i in range(row + 1							,  UpperCamelCase_ ):
								if matrix[i][row] != 0:
										snake_case      ,					snake_case		:    Dict             =					matrix[i], matrix[row]
										snake_case		:    List[Any]             =					False
										break
						if reduce:
								rank -= 1
								for i in range(UpperCamelCase_ ):
										snake_case		:    Union[str, Any]             =					matrix[i][rank]

										       # Reduce the row pointer by one to stay on the same row
						row -= 1

		return rank


if __name__ == "__main__":
							import doctest

							doctest.testmod()


_SCREAMING_SNAKE_CASE 		=      """ABCDEFGHIJKLMNOPQRSTUVWXYZ"""





def 			lowercase(	)		->	None:







 '''simple docstring'''
 UpperCamelCase			  =      input("""Enter message: """       )
 UpperCamelCase			  =      input("""Enter key [alphanumeric]: """       )
 UpperCamelCase			  =      input("""Encrypt/Decrypt [e/d]: """       )

 if mode.lower().startswith("""e"""       ):
  UpperCamelCase			  =      """encrypt"""
  UpperCamelCase			  =      encrypt_message(UpperCamelCase_							,					UpperCamelCase_       )
 elif mode.lower().startswith("""d"""       ):
  UpperCamelCase			  =      """decrypt"""
  UpperCamelCase			  =      decrypt_message(UpperCamelCase_							,					UpperCamelCase_       )

 print(f"""\n{mode.title()}ed message:"""       )
 print(UpperCamelCase_       )





def 			lowercase(	UpperCamelCase_							,					UpperCamelCase_       )		->	str:







 '''simple docstring'''
 return translate_message(UpperCamelCase_							,					UpperCamelCase_							,					"""encrypt"""       )





def 			lowercase(	UpperCamelCase_							,					UpperCamelCase_       )		->	str:







 '''simple docstring'''
 return translate_message(UpperCamelCase_							,					UpperCamelCase_							,					"""decrypt"""       )





def 			lowercase(	UpperCamelCase_							,					UpperCamelCase_							,					UpperCamelCase_       )		->	str:







 '''simple docstring'''
 UpperCamelCase			  =      []
 UpperCamelCase			  =      0
 UpperCamelCase			  =      key.upper()

 for symbol in message:
  UpperCamelCase			  =      LETTERS.find(symbol.upper()       )
  if num != -1:
   if mode == "encrypt":
    num += LETTERS.find(key[key_index]       )
   elif mode == "decrypt":
    num -= LETTERS.find(key[key_index]       )

   num %= len(UpperCamelCase_       )

   if symbol.isupper():
    translated.append(LETTERS[num]       )
   elif symbol.islower():
    translated.append(LETTERS[num].lower()       )

   key_index += 1
   if key_index == len(UpperCamelCase_       ):
    UpperCamelCase			  =      0
  else:
   translated.append(UpperCamelCase_       )
 return "".join(UpperCamelCase_       )


if __name__ == "__main__":
     main()
